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authorJeff King <peff@peff.net>2007-11-28 18:56:11 (GMT)
committerJunio C Hamano <gitster@pobox.com>2007-11-28 22:38:06 (GMT)
commit9da0dabcd9ff71083b6bbc9878c22b12002400dd (patch)
tree3026d6aabab042dad63ee87670e979fd249aec87 /git-cvsimport.perl
parent795c7c0b08fefc7d0f5d0903d8341491350996f0 (diff)
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cvsimport: use rev-parse to support packed refs
Previously, if refs were packed, git-cvsimport would assume that particular refs did not exist. This could lead to, for example, overwriting previous 'origin' commits that were packed. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'git-cvsimport.perl')
-rwxr-xr-xgit-cvsimport.perl25
1 files changed, 10 insertions, 15 deletions
diff --git a/git-cvsimport.perl b/git-cvsimport.perl
index e4bc2b5..a7a7d8f 100755
--- a/git-cvsimport.perl
+++ b/git-cvsimport.perl
@@ -526,18 +526,12 @@ sub is_sha1 {
return $s =~ /^[a-f0-9]{40}$/;
}
-sub get_headref ($$) {
- my $name = shift;
- my $git_dir = shift;
-
- my $f = "$git_dir/$remote/$name";
- if (open(my $fh, $f)) {
- chomp(my $r = <$fh>);
- is_sha1($r) or die "Cannot get head id for $name ($r): $!";
- return $r;
- }
- die "unable to open $f: $!" unless $! == POSIX::ENOENT;
- return undef;
+sub get_headref ($) {
+ my $name = shift;
+ my $r = `git rev-parse --verify '$name' 2>/dev/null`;
+ return undef unless $? == 0;
+ chomp $r;
+ return $r;
}
-d $git_tree
@@ -697,7 +691,8 @@ my (@old,@new,@skipped,%ignorebranch);
$ignorebranch{'#CVSPS_NO_BRANCH'} = 1;
sub commit {
- if ($branch eq $opt_o && !$index{branch} && !get_headref($branch, $git_dir)) {
+ if ($branch eq $opt_o && !$index{branch} &&
+ !get_headref("$remote/$branch")) {
# looks like an initial commit
# use the index primed by git-init
$ENV{GIT_INDEX_FILE} = "$git_dir/index";
@@ -721,7 +716,7 @@ sub commit {
update_index(@old, @new);
@old = @new = ();
my $tree = write_tree();
- my $parent = get_headref($last_branch, $git_dir);
+ my $parent = get_headref("$remote/$last_branch");
print "Parent ID " . ($parent ? $parent : "(empty)") . "\n" if $opt_v;
my @commit_args;
@@ -732,7 +727,7 @@ sub commit {
foreach my $rx (@mergerx) {
next unless $logmsg =~ $rx && $1;
my $mparent = $1 eq 'HEAD' ? $opt_o : $1;
- if (my $sha1 = get_headref($mparent, $git_dir)) {
+ if (my $sha1 = get_headref("$remote/$mparent")) {
push @commit_args, '-p', $mparent;
print "Merge parent branch: $mparent\n" if $opt_v;
}